<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
</body>
</html>
<script>
    // 如何运用ES6快速的去重？

let arr = [12, 43, 23, 43, 23, 55]
let item = [...new Set(arr)]  // 通过解构 new 一个 Set 就可以完成去重的操作


</script>